Valve



H. P. KRAFT Sept. 29, 1925.

VALVE Filed April 29, 1922 kwu mm .lNVENTOR WEE;

? By A itorneys,

1 6 Fig a-is an e Patented Sept. 29, 1925.

HENRY PHiLLIP KRAFT, or nrnenwoon, NEW JERSEY; EDGAR J. PHILLIPS Ann 1,555,013 PATENT OFFICE.

I EARL A. DARR EXECUTORS OF THE WILL OF SAID HENRY P. KRAFT, DECEASED.

. VALVE.

Application filed April- 23, 1922. Serial No. 557,279.

, Toall whom it may concern:

Be it known thatI, HENBY'PHILLIP KRAr'r, a citizen of the United States of America, residing in Ridgewood, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Valves, of which the following is a specification.

The present invention relates to valves, and

10 more articularly to tire valves, and aims to provi e certain improvements therein.

In certain types of tire valves known as racing valves, the valve casing is made very short so as to facilitate mounting the tire on a wheel. The tire when so mounted does not. permit ready access to the valve, and an ex tension member is therefore connected to the valve casing for inflating andgaugingthe tire. The valves are connected to inner tubes in the usual manner.

According to the present invention I provide a racing val 1e designed for use with a single tube tire. The casing of this valve is vulcanized into lace in the tire shoe, and

thus serves the ual pur ose of a vulcanizing valve attachment an a housing for the tire valve inside. To this end the casing is provided with an internal shoulder, which is preferably tapered, to accommodate the .30 packing gasket carried by the valve seat of the standard valve inside and to serve as a, seating face for a vulcanizing valve casing through which the vulcanizmg fluids are conducted to the tire during the vulcanizing process. It is also an object of the present invention to provide a tire valve comprising a valve casin which is adapted to be substantially entirely enclosed wlthin a tire shoe or casing. The invention also includes certain other features of im rovement which will be hereinafter more in y set forth.

Referring to the drawings, wherein the preferred embodiment of my invention is illustrated,

re 1 is alongitudinal sectionthrough the tire valve casing and vulcanizing valve. Fig. 2 is an elevatlonofthe vulcanizing I valve" casing. Fig. 3 is a top. lan view thereof.

l dvatio'n of the vulcanizmg -,valve,proper:

Fig. 5 is a V valve showing nected'thereto.

a supplemental casing con- .rior h. longitudinal section of the tire,

Fig. 6 is an elevation of the tire valve casmg and a supplemental casing indicated in dotted lines.

Referring to the drawings, let A indicate ing to t e tire, and D a plu valve for controlling the flow of the vu canizing fluids into the tire.

The tire valve casing B is preferably embedded within and vulcanized to the body 'of the tire during the process of curing said tire. In the curingprocess as heretofore pract ced it was customary to employ a vulcanizmg valve attachment which was temporarily connected to the tire. With the present'invention, however, such temporary attachment is dispensed with and the tire valve casing B designed to serve the dual purpose of a vulcanizing valve attachment and, a permanent tire valve casin for the tire. To this end, the casing B is formed,

with'a series of concentric bores E, F andG,

adapted to receive astandard valve inside H, and an enlarged threaded bore I in advance of the others to receive the thread on a supplemental casing or part which mi httbe either the vulcanizing valve casing or a racing valve extension J Between the bores F and G there is formed a tapered shoulder K adapted to accommodate the tapered packing gasket on the valve inside H, or the tapered end L formed on a reduced extensionM of the vulcanizing valve casin C. The function of the tapered shoulder-1s to provide a leak-tight joint with the member seating thereagainst, be it of rubber, metal or any other substance. As herein shown, there is a groove N formed between the holes G and I, and this groove is designed to receive either a packing to provide a leakti ht joint between the casing B and :1. Suppl emental casing such as J, or to receive therein the end of a special form of easing as illustrated in U. S. Patent 1,251,585. To

insure a positive union between the tire A an enlar ed-head bf and a corrugated extet will he understood, however, that the casing may have any other suitable con tour, whereby the present object might be accomplished.

' of fluid through the valve. lhe exterior surface of the plug valve D and the vulcanizing valve casing C are preferably of polygonal form, and thus provide wrench engaging surfaces through which force may be applied to positively seat the valve D and the tapered end L,

In Figs. 5 and 6 I have shown the valve as provided with a valve extension J. If desired, this extension may have therein a deflating pin for deflating and gauging the tire as shown in the U. S. Patent 1,251,585 aforementioned.

While I have shown and described the preferred form of my invention, it'will be understood that I do not wish to be limited thereto, since various changes may be resorted to without departing from the spirit of the invention.

What I claim is;-

A vulcanizing valve casing having an eX- ternal threaded portion ad acent one end which is formed as a reduced extension, the free end of said extension being tapered to engage a valve seat packing shoulder within a tire valve casing.

In Witness whereof, I have hereunto signed my name.

HENRY PHILLIP KRAFT. 

